minhas configurações ubuntu
--download tarball--
https://github.com/GitCredentialManager/git-credential-manager/releases/tag/v2.0.886
#baixar o gcm-linux_amd64.2.0.886.tar.gz
tar -xvf gcm-linux_amd64.2.0.886.tar.gz -C /usr/local/bin
git-credential-manager configure
#git config --global credential.credentialStore secretservice